Vibration motor provided with a thin blocking body of a communtator's breakaway

Abstract

The vibration motor 100 of the present invention comprises a housing 110 , a rotating shaft 140 being rotatably installed in the housing 110 and having a recess 141 formed on an outer periphery thereof, a commutator 190 being fixedly combined with the shaft 140 , and a blocking body 180 with a small thickness being forcibly inserted into the recess 141 and fixedly combined with the commutator 190 , wherein the commutator 190 and the blocking body 180 are fixedly combined with each other by an predetermined adhesive.

1. A vibration motor provided with a thin blocking body of a commutator's breakaway, the motor comprising:
 a housing; 
 a rotating shaft being rotatably combined with the housing and having a recess formed on an outer periphery thereof; 
 a commutator being fixedly combined with the shaft; and 
 a blocking body being forcibly inserted into the recess and fixedly combined with the commutator, the blocking body having small thickness, 
 wherein the commutator has a convex protrusion formed on an inner periphery surface thereof and the blocking body has a concave recess corresponding to the protrusion formed on an outer periphery surface thereof, the commutator and the blocking body being combined with each other so as to the protrusion and the recess be closely contact. 
 
   
   
     2. The motor according to  claim 1 , wherein the blocking body is fixedly combined with the commutator by using a predetermined adhesive means. 
   
   
     3. The motor according to  claim 2 , wherein the blocking body has an oppressed recess formed adjacent to an inner periphery surface thereof, and when the oppressed recess is pressed, at least portion of the inner periphery surface thereof adjacent to the oppressed recess is forcibly inserted into the recess of the shaft. 
   
   
     4. The motor according to  claim 2 , wherein the blocking body has a thickness of 0.15 mm. 
   
   
     5. The motor according to  claim 1 , wherein the blocking body has an oppressed recess formed adjacent to an inner periphery surface thereof, and when the oppressed recess is pressed, at least portion of the inner periphery surface thereof adjacent to the oppressed recess is forcibly inserted into the recess of the shaft. 
   
   
     6. The motor according to  claim 1 , wherein the blocking body has a thickness of 0.15 mm. 
   
   
     7. The motor according to  claim 1 , wherein the commutator is integrated with the blocking body by insert molding. 
   
   
     8. The motor according to  claim 7 , wherein the blocking body has an oppressed recess formed adjacent to an inner periphery surface thereof, and when the oppressed recess is pressed, at least portion of the inner periphery surface thereof adjacent to the oppressed recess is forcibly inserted into the recess of the shaft. 
   
   
     9. The motor according to  claim 7 , wherein the blocking body has a thickness of 0.15 mm.